Bottom End

360° oilingMade in the U.S.A.

High-quality precision-manufactured shaftsMade in the U.S.A.

2-stoke pistons include piston, rings, pin and clipsPiston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance4032 T6 Forged Aluminum...

2-stoke pistons include piston, rings, pin and clipsPiston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance4032 T6 Forged Aluminum...

Each kit includes cam plate roller bearings, Koyo Torrington® full roller inner needle bearings, 12-point ARP® camshaft and crankshaft bolts, ARP® fastener moly paste and Loctite® compound and...

Heavy-duty OE replacement connecting rodsCertified 8620 AISI steel provides superior strengthCrankpins are manufactured from hot-rolled ASTM 4115 and case hardened to 58-62RcFeature the latest in...

Two-stroke pistons are made from 4032 siliciumFour-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistonsBoth include 3% copper in materials for better heat...

High-quality, lightweight connecting rodsMade with similar materials to the OEM component to ensure the same performanceSuperficial high-frequency treatment for higher resistance that reduces...

High-quality, lightweight connecting rodsMade with similar materials to the OEM component to ensure the same performanceSuperficial high-frequency treatment for higher resistance that reduces...

High-quality, lightweight connecting rodsMade with similar materials to the OEM component to ensure the same performanceSuperficial high-frequency treatment for higher resistance that reduces...

2-stoke pistons include piston, rings, pin and clipsPiston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance4032 T6 Forged Aluminum...

Converts OEM hydraulic cam chain tensioner to a mechanic automatic cam chain tensionerEliminates top-end noise and the fear of jumping cam timingCompletely automatic, requires no adjustments Polaris...